Ventilator.



vENmAToR.

APPLICATION FILED 1ML?. 9M- 1, 1 86,808. Patented June 13, 1916.

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4i i6 5o 14 respectively.

GEORGE W. LYON, OF GREY EAG-LE, MINNESGTA.

VENTILATOR.

Specication of Letters Patent.

To all ywlw/1a t may concern.'

Be it known that l, GEORGE W. LYON, a citizen of the United States, residing at Grey Eagle, in the county of Todd Vand State of Minnesota, have invented certain new and useful Improvements in Ventilators, of which the following is a specification. Y

This invention relates to an improved ventilator, and the principal object of the invention is to provide a ventilator which can be easily put in place and which is so constructed that it will be securely held in position and prevented from working loose.

Another object yof the invention is to so construct the ventilator that it may be easily removed when desired.

Another object of the invention is to so construct the ventilator that fresh air passing through the ventilator will cause a suction which will remove the heated air from a room.

Another object of the invention is to provide the ventilator with means for guiding the heated air into the ventilator and retarding the passage of fresh air out of the ventilator.

Another object of the invention is to provide the inlet and outlet pipes of the ventilator with improved caps which will prevent dust from entering the ventilator from the outside.

This invention is illustrated in the accompanying drawings ,wherein- Figure 1 is a vertical sectional. view through the ventilator', the wall with which the ventilator is connected being also shown in section; Fig. 2 is an elevation of the ventilator looking from the interior of the room; Fig. 3 is a sectional view taken along the line 3 3 of Fig. 2; Fig. 4 is an enlarged sectional view through one of the collars mounted upon the outer ends of the inlet and outlet pipes; Fig. 5 is an enlarged view of one of the caps which are carried by the collars. v

In the accompanying drawings the numeral 10 indicates a wall which is provided with openings 11 and 12, which openings are to receive the inlet and outlet pipes 13 and The outer end of each of these pipes is threaded and carries a collar 15 from the inner end of which there eX- tends a iiange 16 to which a cap 17 is secured by means of suitable fasteners passing through alined openings 18 and 19.

These caps 17 are provided with openings 20 which permit air to pass through the caps and are covered upon their inner surfaces with a screening 21 which prevents dust from passing through the caps.

A plate or collar 22 is positioned upon .the inner Aend portion of each of the pipes 13 and 141- and is provided with a Vneck 23 through which there passes a set screw After the collars 15 have been connected with the pipes, the pipes are drawn in wardly as far as possible and the collars or plates 22 are then moved into engagement with the inner face of the wall and theset screws 24 tightened to hold the plates in tight engagement with the pipes. This holds the pipes in the proper position and prevents them from having longitudinal movement with the wall. Valves 25 and 26 are connected with the inner ends of the pipes 13 and le and are connected with` the elbows 27 and 28 by means of nipples 29. These elbows 27 and 28 are connected with the upper and lower ends of a perforated pipe 30 which is covered by a wire screen-- ing 31 and carries hoods 32 secured to the pipe 30 between the rows of perforations. These hoods 32 serve to guide the heated air into the pipe 30 and also serveto cause fresh air to pass downwardly into the room. Vhile these hoods would not prevent the fresh air from passing out of the pipe 8O if the valve 26 were closed and the valve 25 opened, they will accomplish this purpose if both the valves are open.

1When this device is in use, it is mounted in the wall in the manner shown in Fig. 1. 1f it is desired to permit heated air to pass out of the room, the lower valve 25 is -closed and the upper valve 26 is opened. The heated air will then pass into the pipe 30 through the openings formed therein and will pass out through the pipe 14. 1f it is desired to use this device for permitting fresh air to pass into the room, the valve .26 is closed and the valve 25 opened. The fresh air will then pass into the pipev 13 and will then enter the pipe 30 and pass out of the openings formed therein. The hoods 32 will guide the fresh air toward the door and will therefore cause the fresh air to move downwardly into the room before moving u upwardly toward the ceiling'.v `Thesehoods will also guide the heated air and cause it to pass upwardly when entering the pipe 30. 1t will thus be seen that the hoods serve to f; sanne .anrrr nieren;

Patented J une 13, 1916.

Yzo

guide the heated air into thelpipe 30 and" also serve to guide the fresh air toward the floor @of the room When passing out of the pipe 80. Y

lf desired, one of these ventilators can vkbe located near the ceiling and the second ventilator near the floor. The lower ventilator could then have the valve 26 closed and valve 25 opened so that the fresh air Would pass out of the openings in the pipeV 30 into the room and thus replenish the air in the room and also causevthe heated air in the top of the room to passout of the upper ventilator, the valve 26 of which Wonld'he Vopened and the 'valve 25 closed. Y

`When it 1s desired to remove this ventilai tor, all that'is' necessary is to remove the rCollars 15 and the pipes'lfand 14 can then be drawn inwardly. lt will thus be seen that When removing the ventilator, the collars 22 do not have to `he released and that the caps 1'7 do not have to be released from the Gopisof this patent may be obtained for collars 15. tivvill thus be possible to per-v manently connect the caps with the collars 15. Y Y

What is claimed is: v

A ventilator comprising a pipe provided c With roWso openings extending about the same in spaced relation, guiding hoods carried by said perforated pipes and secured to the same between the rows of openings formed therein, an inlet pipe communicating with one end of said first mentioned pipe, an outlet pipe communicating With the opposite end of said first mentioned pipe, and means or'controlling the passage of air through saidinlet and outlet pipes.

In testimonyrwhereof I aiiiX my signature in presencev of tivo Witnesses.

GEORGE W. LYON.

Witnesses: A

it. r. Wma, WILL WILKE.

ve cents each, by addressing the Commissioner of Patents. Washington, D. C. 

